International Telecommunication Union ITU-T G.9972 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Corrigendum 1 (04/2014) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks In premises networks Coexistence mechanism for wireline home networking transceivers Corrigendum 1: Revised definition of coexisting systems categories Recommendation ITU-T G.9972 (2010) Corrigendum 1
ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- TRANSMISSION SYSTEMS INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS DIGITAL TERMINAL EQUIPMENTS DIGITAL NETWORKS DIGITAL SECTIONS AND DIGITAL LINE SYSTEM MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER- RELATED ASPECTS TRANSMISSION MEDIA CHARACTERISTICS DATA OVER TRANSPORT GENERIC ASPECTS PACKET OVER TRANSPORT ASPECTS ACCESS NETWORKS Metallic access networks Optical line systems for local and access networks In premises networks G.100 G.199 G.200 G.299 G.300 G.399 G.400 G.449 G.450 G.499 G.600 G.699 G.700 G.799 G.800 G.899 G.900 G.999 G.1000 G.1999 G.6000 G.6999 G.7000 G.7999 G.8000 G.8999 G.9000 G.9999 G.9700 G.9799 G.9800 G.9899 G.9900 G.9999 For further details, please refer to the list of ITU-T Recommendations.
Recommendation ITU-T G.9972 Coexistence mechanism for wireline home networking transceivers Corrigendum 1 Revised definition of coexisting systems categories Summary Corrigendum 1 to Recommendation ITU-T G.9972 (2010) revises the definition of "coexisting systems categories". History Edition Recommendation Approval Study Group Unique ID * 1.0 ITU-T G.9972 2010-06-11 15 11.1002/1000/10434 1.1 ITU-T G.9972 (2010) Cor.1 2014-04-04 15 11.1002/1000/12081 * To access the Recommendation, type the URL http://handle.itu.int/ in the address field of your web browser, followed by the Recommendation's unique ID. For example, http://handle.itu.int/11.1002/1000/11 830-en. Rec. ITU-T G.9972 (2010)/Cor.1 (04/2014) i
FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-T's purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words "shall" or some other obligatory language such as "must" and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http://www.itu.int/itu-t/ipr/. ITU 2014 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ii Rec. ITU-T G.9972 (2010)/Cor.1 (04/2014)
Recommendation ITU-T G.9972 Coexistence mechanism for wireline home networking transceivers Corrigendum 1 Revised definition of coexisting systems categories 1 Changes to clause 3.4 3.4 coexisting systems categories: ITU-T G.996x, IHC1, IHC2 and ACC. IHC1, IHC2 and ACC are reserved by ITU-T. [ITU-T G.996x] is the family of home networking Recommendations including which consists of [ITU-T G.9960], [ITU-T G.9961], [ITU-T G.9963] and [ITU-T G.9964]. ACC is defined as any access servicesystem that is compliant with this Recommendation (e.g., IEEE 1901 access systems (FFT OFDM or Wavelet OFDM), ISO/IEC 12139-1 access system, and ITU-T G.996x for access applications). NOTE 1 IHC1 (IEEE 1901 FFT) and IHC2 (IEEE 1901 Wavelet) are tohave been allocated byto [b-ieee 1901]. NOTE 2 ACC is not for use by in-home systems. Rec. ITU-T G.9972 (2010)/Cor.1 (04/2014) 1
SERIES OF ITU-T RECOMMENDATIONS Series A Series D Series E Series F Series G Series H Series I Series J Series K Series L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z Organization of the work of ITU-T General tariff principles Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital systems and networks Audiovisual and multimedia systems Integrated services digital network Cable networks and transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and other elements of outside plant Telecommunication management, including TMN and network maintenance Maintenance: international sound programme and television transmission circuits Specifications of measuring equipment Terminals and subjective and objective assessment methods Switching and signalling Telegraph transmission Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks, open system communications and security Global information infrastructure, Internet protocol aspects and next-generation networks Languages and general software aspects for telecommunication systems Printed in Switzerland Geneva, 2014